Floor-scraper.



W. A. PAPWORTH.

FLOOR SCRAPER.

APPLICATION FILED Arms, 1912.

1, 170,31 9. I v Patented Feb. 1, 1916.

ZMMZQGM WITNESSES: INVENTOR.

I fly THE COLUMBIA PLANOKZRAPH C L. WASHINGTON D c UNITED STATES PATENT()FFI CE.

WALTER A. PAPWORTH, 0F SYRACUSE, NEW YORK, ASSIGNOR TO E. C STEARN$ &;

COMPANY, OF SYRACUSE, NEW YORK.

FLOOR-SCRAPER.

Specification of Letters Patent.

Patented Feb. 1, 191 6.

Application filed April 8, 1912. Serial No. 689,298.

To all whom it may concern:

Be it known that I, WALTER A. PAPwoR'rH, a citizen of the United States,residing at Syracuse, in the county of Onondaga and State of New York,have invented a new and useful Floor-Scraper, of which the following isa specification.

My invention relates to improvements in a class of tools in which ascraper blade is adjustably attached to a handle and has for its objectsthe provision of a strong and serv iceable tool of few parts having auniversal ball and socket adjustment between the blade and the handle.

A further object is the provision of a universal ball and socket jointcapable of.

being rigidly clamped in any position, composed of fewer parts than hasheretofore been considered necessary for a device of this kind, andyetcapable of easy assembly.

These objects are attained by the device shown in the accompanyingdrawings in which Figure l is a perspective view showing my scraperassembled with portions cut away to show interior parts. Fig. 2 s aperspective View of the nut F. Fig. 3 1s a rear view of the scraper withthe handle removed showing the method of assembling. Figs. '2 and 3 showthe approximate relatlve shape of the parts to accomplish theirfunctions of assembly, swinging, and clamping.

A pair of jaws A and B having portions of their contiguous surfacessubstantially flat are drawn together upon the scraplng blade C by ascrew D. In the rear jaw A a substantially spherical socket E is formedhaving anopening of somewhat less diameter than the greatest diameter ofthe socket.- In the socket E is a nut whose shape is, in general, thatof a hemisphere but whose sides and top have been cut away just enoughto allow it to be slipped into the socket E when it is turned to justthe proper position. There is a threaded hole S through the said nut Fso located and directioned that when a rod is passed through the mouthofthe socket and screwed into the hole in the nut, the latter cannot beturned to the position which permits it to pass through the mouth of thesocket, although it has a considerable freedom of motion in anydirection.

G is a screw long enough to pass completely through the nut and clampagainst the opposite side of the socket and pinned into the handle Hwith a pin I.

In operation, a scraper blade is clamped between the jaws, the scraperis seized by the handle with one hand and drawn over the floor or otherobject to be scraped, down ward pressure meanwhile being brought to bearby the other hand on top of the jaws A and B. In case either the natureof the wood or the cutting edge of the scraper are such that a greateror less inclination of the blade would improve the cutting, the handleis loosened, moved to any desired angle and rigidly clamped by a slighttwist of the handle.

In scraping floors near walls, posts, or other obstructions the handlemay be thrown over sidewise at an angle to enable the operator toconveniently manipulate the tool without scraping his knuckles.

Having thus described my invention 1' claim as new: 7

A tool comprising a member provided with a socket having an openingcommunicating therewith through an integral wall and of lesser diameterthan the socket interior, a clamping nut of a form to permit of itsentering the socket through said open ing and to assume a positionwithin the 'socket'to span said opening, said nut having an apertureregistering with said opening when the nut is turned into said spanningposition, a handle element and a screw shank on the handle elementfitted to the nut aperture'andadapted to exert a force onithe nut toeffect a clamping engagement of the-nut and socket, to secure the partsI Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. 0.

